python3: drop configd

configd is an alias for the SystemConfiguration framework, which is now
always part of the SDK. Removing this parameter because it effectively
does nothing now, which could be misleading to users.

pkgs/development/interpreters/python/cpython/default.nix

@@ -25,7 +25,6 @@
 
 # platform-specific dependencies
 , bash
-, configd
 , darwin
 , windows
 
@@ -181,8 +180,6 @@ let
   ] ++ optionals stdenv.hostPlatform.isMinGW [
     windows.dlfcn
     windows.mingw_w64_pthreads
-  ] ++ optionals stdenv.hostPlatform.isDarwin [
-    configd
   ] ++ optionals tzdataSupport [
     tzdata
   ] ++ optionals withGdbm [
@@ -362,9 +359,6 @@ in with passthru; stdenv.mkDerivation (finalAttrs: {
     (enableFeature enableGIL "gil")
   ] ++ optionals enableOptimizations [
     "--enable-optimizations"
-  ] ++ optionals (stdenv.hostPlatform.isDarwin && configd == null) [
-    # Make conditional on Darwin for now to avoid causing Linux rebuilds.
-    "py_cv_module__scproxy=n/a"
   ] ++ optionals (sqlite != null) [
     "--enable-loadable-sqlite-extensions"
   ] ++ optionals (libxcrypt != null) [